Car sound proof mat is a special formulation closed cell foam with excellent Thermal and Acoustic properties ideal to reduce noise. 10mm closed cell foam provides a difficult path for the sound waves to travel through. This self adhesive car sound proof mat can maintain shape under pressure yet be flexible enough to trim easily in many areas. Water and high temperature resistant. As well as improve the vehicle acoustics this high performance closed cell foam will ensure your vehicle stays cooler in the summer and warmer in the winter, making your ride more comfortable. It is easy to install car sound deadening foam for roofs, doors, wheel arches, boot and parcel shelf applications.